8133316731 has 16 divisors (see below), whose sum is σ = 12051799200. Its totient is φ = 5421112704.

The previous prime is 8133316699. The next prime is 8133316733. The reversal of 8133316731 is 1376133318.

It is a happy number.

It is not a de Polignac number, because 8133316731 - 2⁵ = 8133316699 is a prime.

It is a super-2 number, since 2×8133316731² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8133316733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118455 + ... + 174063.

It is an arithmetic number, because the mean of its divisors is an integer number (753237450).

Almost surely, 2^8133316731 is an apocalyptic number.

8133316731 is a deficient number, since it is larger than the sum of its proper divisors (3918482469).

8133316731 is a wasteful number, since it uses less digits than its factorization.

8133316731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61035 (or 61029 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 8133316731 is about 90184.9030104263. The cubic root of 8133316731 is about 2011.0485796347.

The spelling of 8133316731 in words is "eight billion, one hundred thirty-three million, three hundred sixteen thousand, seven hundred thirty-one".